Sheet-cutting machine



C. E. DELLENBARGER. SHEET CUTTING MACHINE APPLICATION FILED 05c. 14, 1918- 1,407,0 1 Patented Feb. 21 1922.

. f6 16 28 6 19 19 HiI II 23 n I 1 i\j5 27. (HI I H6 2 3 15 UNITED STATES PATENT j OFFICE.

CHARLES E. DELIiENBAR-GER, OF CHICAGO, ILLINOIS.

snnnr-cu'rrrire MACHINE.

I Specification of Letters Patent. i Patented Feb, 21,1922

Application filed December 14, 1918. Serial No. 266,680. 7 Y

T 0 aZZ whom it may concern.

Be it known that I, CHARLES E. DnLLEN- BARGER, a citizen of the United States, and a resident of Chicago, in the State of Illinois, have invented certain new and useful Improvements in Sheet-Cutting Machines, of which the following is a specification.

My present invention relates to cutters in eneral, and more particularly to devices for cutting or scoring sheets, and has special reference to the provision of an improved form of cutter constructed and adapted for the ready renewal, or removal for rcsharpening, of the cutter blades.

The principal objects of my invention are the provision of a cutter having removable blades, wherein the blades may be removed with the greatest facility for replacement or repair, and assembled with equal facility and accuracy, one wherein the several blades are fixed against longitudinal movement relatively to each other and rotary or other movement relatively to their support, and one wherein a considerable saving of material may be attained; the provision of a cutter having blades disposed in different planes and arranged to permit the removal of certain of the blades without disturbance of others thereof; the provision of a cutter having removable intersecting blades, and one wherein the blades sustaining the greatest wear may be replaced without removal or disarrangement of other blades; the provision of a cutting machine employing cooperating members each provided with removable blades coacting to engage simultaneously a sheet or like article to be cut, and in a machine thus characterized, and especially one wherein revolving rolls are utilized, the provision of means whereby the desired relative positions of the several blades may at i all times be maintained, together with certain other objects which will be hereinafter more particularly set forth.

In attaining the stated objects and in gaining a number of additional benefits and advantages to be hereinafter disclosed I have provided the construction illustrated in the accompanying drawing, wherein- Figure 1 is a schematic side elevational view partly in vertical section, of a portion of a sheet cutting machine employing a plurality of rolls embodying my invention in a form preferred for certain purposes;

Figure 2 is a fragmentary transverse sec- Figurelis a perspective view illustrative of a portion of one of the longitudinal cutter blades;

Figure 5 is a longitudinal elevational view, partly in vertical section, of one of the cutter rolls, illustrative of the means for retaining the several cutter blades in predetermined relation.

Cutters of the character referred to, while of utility for a number of purposes, are of special usefulnessin cutting portions from sheets resistent material, such as sheets of gum chicle which. are out with considerable difficulty owing to their resistence to a clean separation of the parts acted upon and their tendency to damage and dull the blades employed, with inordinate rapidity; and also for scoring such sheets, both tranversely and longitudinally, I have therefore, for

purposes of illustration shown my invention rolls 10, 10 may be revolved at a substantially even rate of speed, so that their respective knife blades may at all times be properly opposed in order to perform the cutting operation, such rolls are provided preferably with intermeshing gears mounted on the shafts 18, 13 to which motion may be imparted in any convenient manner. Inasmuch as the rolls 10, 10' are substantially duplicates, I will proceed to describe the construction of the roll 10.

As will be understood on reference to Figures 2 and 5, for the purpose of saving weight I preferably employ a cylinder 15 provided at each end with a head 16 which may be keyed to the shaft 14: as indicated at 17, set screws 17 holding the keys in place. On the cylinder 15, I arrange thedesired number of circular knife blades, 18, interposing therebetween spacing rings 19, whereby the spaced relation of the blades 18 may be maintained. f p I For preventing relative rotation of the knife blades 18, and spacing rings19 or ro-- tation thereof on the cylinder 15," key ways are cut as indicated at 20 (Figure 2) at 21 (Figure 8') in the cylinder, blades and rings, respectively, for the insertion of a longitudinally disposed key 23.

For maintaining the blades 18 and rings l9vagainst longitudinal movement on the cylinder 15, and for other purposes presently to be described, I thread the ends or the cylinder 10 eXteriorly for the reception of locking collars 2 1, 2 1 provided with set screws 25, 25' respectively for maintaining such collars in adjusted position.

The constructlon above descrlbed being sultable for the cutting of strips extending longitudinally of the sheets acted upon, I

will now proceed to describe the means whereby the cutting transversely of the sheet is performed.

On viewin Figures 2, 3 and 5, it will be observed that each oi the annular knives 18, and spacing rings 19, are respectively apertured and slotted and cut-away at suitable in tervals varied according to the length of the portions to be cut from the sheet, the apertures and slots in the annular blades being indicated at 26, 26 (Figure and the slots and cut-away portions in the spacing rings being as indicated at 27, 27 (Figure Care being employed in arranging the apertures and slots 26, 26 and slots 27 in parallelism, and the collars 21, 24 being arranged to hold the parts firmly so that all of the seve 'al openings referred to will register, the longitudinally disposed blades, 29, which are preferably formed of sheet steel, having a strip of metal riveted thereto to "form a bead 30, and cutting edge 31 (see Figure 1) may then be inserted in the longitudinalopening presented, the head being disposed in the apertures 26 and slots 27 and the cutting edges 31 filling and extending through the slots 26 and being held in place in the cutaway partitions 27 by means of fillerpieccs 28 suitably affixed to the rings 19 as indicated at 28'. The member 24 is then put on so as to close the ends of the openings formed by the slots 26, 26 and 27, 27 and the ends of the knife blades 31 abut against said member 24: upon insertion, all parts of the roll 10 being new locked in assembled position. hen, however, it is desired to remove one of the blades 29, the'collar 2 1 is removed, blade 29 is then driven out longitudinally when such blade properly resharpened, or a new blade, may be inserted and duly locked in position by manipulation of the member-24:.

Itwill thus be seen that since removal of the member'2el, 24- frees thenends of the that the longitudinal cutting 01f blades 29'" in the rolls 11, 11 are held similarly to the sheet scoring blades 29 of the rolls 10,10, the moving "endless sheet, say of gum chicle, 82, ted by the rolls 12, 12 being first severed into short lengths 33, for convenience in handling, by the severing blades 29" and thenfscored or out longitudinally" and transversely by the blades 18 and 29 respectively.subsequently, the short lengths or cakes, are broken up into sticks of chewing gum by parting the sheet along the lines of such scoring;

\Vhile the foregoing specification has been directed to the embodiment of my invention in the form '01"- a sheet cutting machine, and more particularly to a set of rolls carrying oppositely disposed cutters adapted for scoring'and slitting sheets into sticks of chewing gum, it will be evidentthat mypresent improvements are adapted to sustain other :lorms of tools'than cutters and that they are also adapted for operating other articles than sheets. x

Having thus described my invention and illustrated its use, what I claim as new and desire to secure by Letters Patent is the following: 3

1. A cutting device comprising, in combination, a cylindrical support, a longitudinal slot arranged on the periphery of said support,'a longitudinal cutter 'providedwith an enlarged base portion adapted to engage said slot and havinga cutting portion projecting from said slot, and a removable retaining means acting on said enlarged portion of the cutter for holding said cutter'against radial movement relatively to said cylindrical sup port.

2. A cutting device comprising, in combination, a cylindrical support, iii-longitudinal slot having a restricted outer end arranged on the periphery of saidsupport, a longitudinal cutter provided with an enlarged portion adapted to engage said slot and having a cuttin ed e oro'ectin throu h said re- C) 2') b b stricted portion, means at one end of the cylindrical support for restraining movement of'said'longitudinal cutter, and an end member adapted to movably engage said support adjacent its other end and prevent relative movementof said longitudinal cutter and said support. l

3. A cutting device comprising, in combination a support having a slot adapted to receive a cutter blade and provided-with a cut-away portion arranged in juxtaposition with said slot,a filler strip for said cut-away portion, anda cutter blade provided with an enlarged portion, the enlarged ortion of the blade'being disposed in $9.1 slot, the

oo'r whereb said blade is restrained from movement relatively to said support and the cutting portion of the blade is firmly held in predetermined relation to said support.

A cutting device comprising, in combination, a cylindrical support, a longitudinal slot having a restricted outer end arranged on the periphery of said support, a longitudinal cutter provided with an enlarged base portion adapted to engage said slot and having a cutting edge projecting through said restricted portion, means at one end of the cylindrical support for restraining movement of said longitudinal cutter, an end member adapted to movably engage said support adjacent its other end and prevent relative longitudinal movement of said longitudinal cutter on said support, and a removable retaining means acting on said enlarged portion of the cutter for holding the cutter against radial movement rela tively to said cylindrical support.

5. A cutting device comprising, in combination, a support having slots therein, a plurality of cutters having oifset portions adapted to engage said slots, said cutters consisting of a, blade portion having a cutting edge along one side and along the other side a bead of metal fixed to the cutter and forming said ofi'set portion. i

6. A cutting device comprising, in combination, a cylindrical support, a series of longitudinal slots arranged peripherally around said. support, and longitudinal cutters comprising a strip of metal having a bead formed on one edge of said strip, said beads being of a suitable form for reception in said slots, retaining members acting on said beads, and means for holding saidretaining members on said support.

7. A cutting device comprising, in combination, a cylindrical support, a series of longitudinal slots having enlargements at their lower ends arranged peripherally around said. support, and longitudinal cutters having base portions adapted to be brought into engagement with the enlargements at the lower ends of said longitudinal slots, by sliding movement only, whereby said cutters are prevented from moving perpendicularly relatively to the axis of said support.

8. A cutting device comprising, in combination, a. cylindrical support, a series of longitudinal slots arranged peripherally around said support, longitudinal cutters having enlarged bases adapted to be inserted in said slots by sliding movement, the said slots having restricted openings at their outer ends through which the cutting edges of said longitudinal cutters project, and end members adapted to engage said support adjacent its ends and prevent relative movement of said longitudinal blades and said support.

9. A cutting device comprising, in conibination. a cylindrical support, annular cutting blades arranged on sald support, annular spacing rings between said blades, radial slots having enlargements "at their lower ends in said blades and said spacing rings for the reception of longitudinal cutting blades formed for engagement with certain of said slots, and a keyed connection between said cylindrical support and said annular blades and spacing rings, whereby a movement of the cutters relatively to the cylindrical support is prevented and the strain of the support of the longitudinal blades is taken off from the annular blades.

10. A cutting device comprising, in combination, a cylindrical support, a series of annular cutters arranged peripherally around said support, a series of longitudinal slots having enlargements at their inner ends in said annular cutters, longitudinal cutters having enlarged base portions adapted to be brought into engagement with said enlarged portions of said slots, and with narrower cutter portions adapted to be brought into engagement with the outer edges of said slots, by sliding movement only, whereby said longitudinal cutters are prevented from moving perpendicularly to the axis of said support.

11. A cutting device comprising, in com bination, a cylindrical support, a series of annular cutters. spacing members between said cutters arranged peripherally around said support, a series of longitudinal slots having enlargements at their inner ends in said annular cutters, longitudinal cutters having enlarged base portions adapted to be brought into engagement with said enlarged portions of said slots, and with narrower cutter portions adapted to be brought into engagement with the outer edges of said slots, by sliding movement only, whereby said longitudinal cutters are prevented from moving perpendicularly to the axis of said support.

12. A cutting device comprising, in combination, annular cutters apertured for the passage of longitudinal cutters, and longitudinal cutters provided with thickening strips aflixed thereto whereby said longitudinal cutters are prevented from moving radially relatively to said annular cutters.

13. A cutting device comprising, in combination, a cylindrical support, a series of longitudinal slots arranged peripherally around said support, and longitudinal cutters comprising a strip of metal having a cutting edge and a stiffening strip attached to the opposite edge of said cutters, forming 10 strips, said beads being a suitable form for reception in said slots, and annular cutters arranged on said-support, said annular cutters having slots adjacent their outer margins for receiving the cutting edges of said longitudinal cutters whereby the cuttin 15 edges of all of said cutters may be arrange equidistant from the axis of said support.

In Witness whereof I have hereunto signed my name.

CHARLES E. DE-LLENBARGER. 

